Deathpool. Then Gill was taken to the higher (or lower?) level, the second one, the Lonely house that is. Let's see if he could survive here, put in a solitary confinement for months and years. A young and beautiful man full of unrequited love and confusing desires.
Now, what is happening in Flan's dimension of the house? Is there anybody home? Somebody?
'In these two homes we're not bounded by time and space. It's the same plane for us. I write in this book, and it shows up in the both homes at the same time. No matter how strange it may sound. We're not lonely, and shall never be'.
It looks like Max and Flan just left a loophole for themselves, to cheat the house they have created themselves. The house couldn't separate them in any way, and things will always remain like this.